Reefer drain hose thingy ma bob

keeps bugs out of the tube. Yellow Jackets in particular.

Or, you can get a new one here.....

Keeps bugs from crawling up into the fridge. Keeps wasps from building mud nests inside and stopping it up. bugs like to get the water on the inside. Clean it, and put it back. Alternate is to take a bit of screen mesh and cover the opening, rubber band or tiewrap to hold in place. The filter plug is the best solution, just check and clean occasionally.

You can also re-route the tube to put a small "P" trap in the line to prevent critters from entering.

SAR Tracker wrote:
keeps bugs out of the tube. Yellow Jackets in particular.

Or, you can get a new one here.....

$11.00???
ROFL!

When I bought the RV new I added screens to all vents as Mud Daubers are a scourge in Florida.

If I can clean this one enough I’ll put it back on or add a screen.

Thanks all.

I bought one of those plastic mesh-like dish scrubbers for a dollar or so, cut off a small piece, and pushed it up into the tube.

Reminds me that I should do something with my furnace.

enblethen wrote:
You can also re-route the tube to put a small "P" trap in the line to prevent critters from entering.

What about when it dries out during the off season?

What is "off" season?

Our filter-plug also stops draining whenever the little tray it rests in fills up with water, which happens often when it's very humid.

So I pull the hose out the frig's side vent and let it drain outside at those times.

On Dometic refers, the end of the drain hose has a cap with small holes, that does 2 things, to prevent insects going up and to restrict a small amount of air from going back up into the refer. When installing the refer, they supply a LOT of extra white drain hose for the installer to either loop and make a P-Trap to stop air intrusion. I HAVE NEVER SEEN AN OEM INSTALL IT THIS WAY.
On Norcold Refers, they have a drain cup next to the burner flue with the drain hose installed in that cup. On the end is a plastic check valve that opens when water fills the drain tube. DO NOT allow the end to lay in the drain cup. lift it up a 1/2 inch and have it dangle just above the drain cup. That will allow the check valve to do its job and not get clogged up. Clogged up Norcold drain check valves are very common. Doug